标题： 通胀的不可逆松弛 显示英文标题

标题： The irreversible relaxation of inflation

摘要： 基于对嵌入在德西特空间中的开放系统不可逆演化的马尔可夫主方程的先前分析结果，我们在宇宙学弗里德曼方程中包含了一个来自温度为$T_{\rm dS} = h / 2 \pi$的物理浴的贡献，其中$h$是哈勃参数。 我们表明，这提供了一种宇宙常数不可逆弛豫的机制，并且无需后续再加热即可实现暴胀的优雅退出。 暴胀期间的热粒子产生给出了绝热、高斯且近似尺度不变的宇宙扰动。 因此，我们无需任何暴胀势能即可获得暴胀的主要特征。 显示英文摘要

摘要： Based on the results of a previous analysis of the Markovian master equation for the irreversible evolution of an open system embedded in de Sitter space, we include in the cosmological Friedmann equations a contribution from the presence of a physical bath at temperature $T_{\rm dS} = h / 2 \pi$, where $h$ is the Hubble parameter. We show that this provides a mechanism for the irreversible relaxation of the cosmological constant and a graceful exit to inflation, without need for subsequent reheating. Thermal particle production during inflation gives adiabatic, Gaussian, and approximately scale-invariant cosmological perturbations. We thus obtain the main features of inflation without any inflaton potential.